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Hereditary nonpolyposis colorectal cancer can be detected early if people at high risk for the genetic condition get annual colonoscopies, researchers reported. After baseline colonoscopies on 1,126 patients were done, follow-up tests revealed significantly fewer stage III colorectal cancers.

Freelance journalist Janet McKenzie Prince wrote the book "My Gluten-Free Knoxville" to help other celiac patients -- or people on a gluten-free diet -- find restaurants, groceries, recipes and local resources.

Some health experts question the health benefits attributed to ingesting friendly bacteria, or probiotics. They say prebiotics, which are present naturally in food, work to feed friendly bacteria already in the gut, rather than adding to the mix. Emerging research indicates that supplements of prebiotics may have health benefits too.

Cooking for someone with food allergies or celiac disease means understanding there is no cure but there are substitutes. For instance, instead of wheat, try pastas and noodles made with quinoa, corn, potato, rice and beans -- now more readily available at stores. Check out other substitutes, ingredients to watch out for and recipes.

A study of more than 2,500 IBS patients found peppermint oil, antispasmodics and fiber were effective for treating IBS and showed no side effects. Researchers say these older treatments should be considered as first-line treatment for some patients.